Attempt to fix 14485.

chrome/browser/gtk/gtk_floating_container.cc

Index: chrome/browser/gtk/gtk_floating_container.cc
diff --git a/chrome/browser/gtk/gtk_floating_container.cc b/chrome/browser/gtk/gtk_floating_container.cc
index 51f5e14ffff43e966145f4c54232746e07e89a7d..b9d0e4609942500fd5fdbdb32b495df0bdaf4648 100644
--- a/chrome/browser/gtk/gtk_floating_container.cc
+++ b/chrome/browser/gtk/gtk_floating_container.cc
@@ -172,12 +172,12 @@ static void gtk_floating_container_forall(GtkContainer* container,
                                           gboolean include_internals,
                                           GtkCallback callback,
                                           gpointer callback_data) {
-  GtkBin *bin = GTK_BIN(container);
-
+  g_return_if_fail(container != NULL);
   g_return_if_fail(callback != NULL);
 
-  if (bin->child)
-    (*callback)(bin->child, callback_data);
+  // Let GtkBin do its part of the forall.
+  ((GTK_CONTAINER_CLASS(gtk_floating_container_parent_class))->forall)
+      (container, include_internals, callback, callback_data);
 
   GtkFloatingContainer* floating = GTK_FLOATING_CONTAINER(container);
   GList* children = floating->floating_children;